I think your choice for a Dodge Grand Caravan is an excellent choice.
I've wanted to get a Dodge Caravan minivan for long time. I think it's much more versitile than having pickup truck.
It's true that Dodge created the whole minivan theme. I think the Dodge Caravans are also the most human-engineered of most of them available. I especially love the dash, which is incredibly important to me. The delay wiper timer is also extremely good. Many delays are only 10 seconds, but I think Caravans go as long as 30 seconds, which when you're living in the desert and you barely get sprinkles from rain clouds, it's very irritating to have dry wipes every ten seconds when there's nothing on the window, and yet 30 second wipes are just perfect.
Good minivan, good room, good performance. it may be a dying breed, but minivans are quite good if you take care of them well enough.....no 4-wheeling, you know!!